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发明名称
Low frequency loudspeaker system
摘要
申请公布号
US3164221(A)
申请公布日期
1965.01.05
申请号
US19610115171
申请日期
1961.06.06
申请人
ALFRED H. ROSEN
发明人
RICH STANLEY R.
分类号
H04R1/42;H04R7/10
主分类号
H04R1/42
代理机构
代理人
主权项
地址
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